National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Partly Cloudy

60°F

16°C

Humidity 86%
Wind Speed NW 8 mph
Barometer 29.77 in (1008.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 3 Sep 7:55 am CDT
Extended Forecast for

3 Miles ENE Ontario WI

  • Today

    Today: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Northwest wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Calm wind becoming west 5 to 9 mph in the morning.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly before 1am. Low around 46. Southwest wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers

  • Friday

    Friday: Partly sunny, with a high near 59. West wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West wind 5 to 8 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 64 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Northwest wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 62. Calm wind becoming west 5 to 9 mph in the morning.
Thursday Night
Showers, mainly before 1am. Low around 46. Southwest wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a high near 59. West wind 11 to 14 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 42. West wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 62. West wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 43. Calm wind.
Monday
Mostly sunny, with a high near 69. South wind 3 to 7 mph.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 52. South wind around 6 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 71. South wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Ontario WI
 43.73°N 90.55°W
Last Update:
7:59 am CDT Sep 3, 2025
Forecast Valid:
9am CDT Sep 3, 2025-6pm CDT Sep 9, 2025
 
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